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How to Properly Operate a Coffee Drip Machine There are many ways to make a delicious cup, but a drip maker is still one of the most popular. These machines make use of hot water and gravity to extract oils, flavors and caffeine from ground coffee beans. The best coffee drip makers come with precise temperature controls to ensure that you get the right temperature for brewing, which is critical for flavor extraction. You can also choose filters that enhance or mellow certain coffee characteristics. Control